(STMW) — A south suburban man was charged Saturday with posting Facebook threats to kill police officers, which set off alarms in the law enforcement community following the cold-blooded murders of two New York City cops, a police source told the Chicago Sun-Times Saturday.

Aries Woodfin, 33, was arrested late Friday and police searched a home where he lived in Ford Heights. Officers found a .45-caliber pistol in the home and a makeshift gun range in the basement with dozens of spent bullet casings of various calibers strewn on the floor, the source said.

Woodfin, a convicted felon, was charged in Cook County Criminal Court with illegal gun possession, a felony, along with misdemeanor charges of assault, failure to have a valid firearm owner’s identification card and disorderly conduct.